Stem-winding watch



(No Model.)

B. UHN.

STEM WINDING WATCH.

Nopasmloy Patented Feb. 8., 1887.

JMGTYZOT. v

N PETERS. PhclarLillmgmp'rwi. wamin mhuc UNITED STATES PATENT OFFICE.

EDMOND KUHN, OF BROOKLYN, NElV YORK.

STEM-WINDING WATCH.

SPECIFICATION forming part of Letters Patent No. 357,210, dated February 8, 1887.

Application filed March 2!), 1886. Serial No. 196,907. (No model.)

To all whom it may concern.-

Be it known that I, EDMOND KUnN, a citizen of the United States of America, and a residentof the city of Brooklyn, in the county of Kings and. State of New York, have invented certain new and useful Improvements in Stem Hand-Setting and Spring-finding Attachments forlVatches, of which the following is a specification, reference being made to the accompanying drawings, in'which- Figure 1 shows a sectional view of the movement of a watch, the pendant, and the crown containing my improvements. Fig. 2 is a plan view of the top plate of a watch from the inside, showing the arrangement of myimprovements. Fig. 3 is a plan view of the dial or pillar plate of a watch 1" rom the inside, show ing the arrangement of my improvements. Fig. 4. is a sectional view of the crown, enlarged. Fig. is a perspective view of the hand-setting wheel, enlarged.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to easily and cheaply provide awatch with means whereby the hands may be set and spring wound by a stem hand-setting and spring-winding mechanism of simple construction; to which end said invention consists, principally, in a stern winding and hand-setting mechanism for watches, in which a ratchet attachment is placed in the crown and pendant, and, per consequence, outside of the watch-movement, thus permitting the stem-winding wheel to revolve when the crown is turned forward, and allowing the stem-winding wheel to remain stationary when the crown is turned backward, substantially as and for the purpose herein after specified.

It consists, further, in other details of imwheclM to revolve freely upon the squared portion or of the stein-winding arbor D. The beveledor click-toothed wheel an, with which the beveled or click-toothed wheel M engages, has a square hole cut through its center, and is fitted to the squared portion a of the stemwinding arbor D, upon which it slides, so that the said cliclrtoothed wheel or revolves with the stem-winding arbor D. The spring O holds the click-wheel m in engagement with the click-wheel M. The stein-winding arbor D passes through the pendant F,the spiral spring 0, the click-wheels M and m, and the crown A. That portion of the stem-winding arbor D which passes through the crown A is turnedround and forms an axle for the crown A, the base of the said turning at the tip of the squared portion of the stem-winding arbor D forming a shoulder upon which the crown.

A rests. The crown A is held in place on the stem-winding arbor D by'means ot' a screw, 1?. A stein-winding wheel, E, is attached to the stem-winding arbor D.

It will be'readily perceived that when the crown A is turned backward the click-wheel M, which is fast to it, will also be turned backward, and the teeth of the click-wheel M will trip over the teeth of the click-wheel m, allowing the stem-winding arbor D to remain stationary, but when the crown A is turned forward the ratchet-wheels M and or both revolve, being held in engagement by the spring 0, and consequently the stem-winding arbor D and stem-winding wheel E are revolved.

In order to hold the stenrwinding wheel E in engagement with the spring-setting wheel b or with the handsetting wheel B, I employ a lever, S, pivoted (c) to either the top plate, Z,

or to the dial-plate Y, as may be desired, but

not upon both plates of the samemovement. In the drawings I show this lever S in Fig. 2 as pivoted to the top plate, Z, and holding the stenrwinding wheel E in its normal position-- e., in engagement with the spring-winding wheel I).

In Fig. 3 I prefer to represent the lever S as pivoted to the pillar or dial-plate Yand holding the stem-winding wheel E in engagement with the hand-setting wheel 13. The said lever S has near the end of itslong arm a pin, a,

teeth of the stem-winding wheel E to mesh T with the teeth of the hand-setting wheel B, the short arm or nose 7; of the lever S will be thrown over into notch 2 on the spring L, and the stemwvinding wheel E will thus be held in engagement with the hand-setting wheel B, as

shown in Fig. 3.

In the foregoing description of myinvention I have confined the description of my improvements to a watch having the spring-winding wheel I) arranged upon one plate of the movement and the hand-setting wheel B arranged upon the opposite or dial plate, with an intermediate gear-wheel, E, attached to the stemarbor D, and arranged so that the said gearwheel E may be moved longitudinally to mesh with the face or peripherical wheel-teeth of the spring-winding wheel I) or to mesh with the crown wheel teeth of the hand-setting wheel B, as may be desired; but I do not by any means desire it to be understood that I confine myself in the application of my improvements in time-pieces to watches of the character named, as I do not limit myself to watches of that character, but have adopted that class in this present description of my 3 5 improvements simply because I consider that the usefulness, novelty, and simplicity of my improvements are best illustrated when so applied.

I apply my improvements to any watch having a stem through the pendant in which it is desired to easily and cheaply provide the means whereby a backward movement of the crown or stem may be obtained without being at the expense of introducing inside the movement of the watch itself any additional and, 5 to some extent, intricate part or parts. I thus greatly simplify the construction of the watch and render it practicable to place this backward movement of the crown when winding or setting, as the case may be, in almost any of 0 the cheap watches now manufactured.

Having thus set forth fully the nature and merits of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. I11 awatch, in combination with the stem- 5 5 arbor D, click or beveled-tooth wheel on, spiral or other ratchet-spring 0, slot or turning T, lever S, spring L, and pin a, the crown A havinga circular recess, X, sunk or milled into it, into which is fastened a click or beveled tooth wheel, M, by which arrangement and combination the ratchet attachment is ob tained and placed outside of the movement of the watch, substantially as and for the purposes set forth. I 6- 2. In a watch, in combination with the stemarbor I), click or beveled-tooth wheel m, spiral or other ratchet-spring O, crown A, and click or beveled-tooth wheel M, the lever S, spring L, turning T, and pin a, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as myinvention I have signed my name,in presence of two witnesses, this 27th day of March, 1886.

EDMOND KUHN.

Witnesses:

FRANK M. GLU'rn, CHAS. M. Cannon. 

